Top-Down Parsing/Exercise 6

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Problem

Consider the following grammar, where F is the initial symbol and {a,b,c,d,e} is the set of terminal symbols:

F -> G b | O c F e
O -> a
G -> F c | O c d | (eps)
  1. Examine the grammar and rewrite it so that an LL(1) predictive parser can be built for the corresponding language.
  2. Compute the FIRST and FOLLOW sets for all non-terminal symbols in the new grammar and build the parse table.
  3. Show the analysis table (stack, input, and actions) for the parsing process of the acbe input sequence.

Solution